Hi Baxter Basics
In . net you wrote:

So if you wrap your hand in foil and stuff it in a BBQ the foil will act as
a heat barrier

No, because the foil is an extremely good conductor of heat.
It is also extremely good at blocking radiant heat. So if you created a
glove of foil /that did not touch your skin/ then you could stuff your hand
in a BBQ.

--
Fishter
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